摘要
建立了用活性炭管吸附工作场所空气中三氯甲烷和三氯乙烷,乙醇解吸,HP-NNOWAX毛细管色谱柱分离,氢火焰离子化检测器检测的方法。在采样体积为20L的条件下,该方法三氯甲烷和三氯乙烷最低检出质量浓度为0.01mg/m3。本方法前处理简便,分离度好,干扰少,分析灵敏度高,能满足分析要求。
Trichloromethane and trichloroethane were absorbed by the activated carbon tube. The desorption process was done using ethanol. Then HP - NNOWAX capillary chromatographic column separation method and hydrogen flame ionization detector were applied. The minimal detection limit was 0. 01 mg/m3 by this method when the sampling volume was 20L. This method is simple with good separating degree and less interference and high sensi- tivity. It could meet the requirements of analysis.
出处
《环境科学导刊》
2015年第4期109-111,共3页
Environmental Science Survey
